2QPS
"Sugar tongs" mutant Y380A in complex with acarbose
Entity
| Entity ID | Chain ID | Description | Type | Chain length | Formula weight | Number of molecules | DB Name (Accession) | Biological source | Descriptive keywords |
| 1 | A (A) | Alpha-amylase type A isozyme | polymer | 405 | 44548.0 | 1 | UniProt (P00693) Pfam (PF00128) Pfam (PF07821) | Hordeum vulgare | 1,4-alpha-D- glucan glucanohydrolase, AMY1, Low pI alpha-amylase |
| 2 | B, C, D (A) | CALCIUM ION | non-polymer | 40.1 | 3 | Chemie (CA) | |||
| 3 | E (A) | water | water | 18.0 | 169 | Chemie (HOH) |
Sequence modifications
A: 1 - 405 (UniProt: P00693)
| PDB | External Database | Details |
|---|---|---|
| Val 284 | Ala 308 | engineered mutation |
| Ala 380 | Tyr 404 | engineered mutation |
Sequence viewer
Contents of the asymmetric unit
| Polymers | Number of chains | 1 |
| Total formula weight | 44548.0 | |
| Non-Polymers* | Number of molecules | 3 |
| Total formula weight | 120.2 | |
| All* | Total formula weight | 44668.2 |
